| 摘要 |
<p>A fluid control valve (100) for use in a system (50) for inflating an anti-G garment (54), the valve (100) including an elongate chamber (11) in which an elongate valve member (12) is moveable axially, the chamber (11) having first (14) and second (15) axial end chamber parts and an intermediate chamber part (18), there being an inlet opening (20) in a chamber wall of the intermediate part (18) which provides for the inflow of fluid into the chamber (11). The valve (10) has an outlet (25) from the chamber (11) at a second axial end (15) of the chamber (11) where a valve edge (28) is provided. The valve member (12) includes a first portion (30) which at least substantially closes the first axial end (14) of the chamber (11) and is moveable in the chamber (11) between the inlet opening (20) and the first axial end (34) of the chamber (11), an intermediate portion (35) which is moveable in the intermediate chamber part (18) and has a cross sectional area less than that of the intermediate chamber part (18) thus to permit the inflow of fluid from the inlet opening (20), and a second portion (40) which includes a flow control device (42) which co-operates with the valve edge (28) to control fluid flow depending upon the axial position of the valve member (10) in the chamber (11), the second portion (40) of the valve member (12), including the entire flow control device (42), being receivable in the second axial end (15) of the chamber (11).</p> |
